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IMSA Celebrates 50th Anniversary

June 23 marked 50th anniversary of formation of International Motor Sports Association…

Photo: IMSA

It was 50 years ago yesterday – June 23, 1969 – when the articles of incorporation for the International Motor Sports Association (IMSA) were filed in Connecticut.

Fifty years later and after many twists and turns, IMSA is the premier professional sports car sanctioning body in North America, living what many might consider its best life right now.

IMSA has a complete schedule of the best road racing tracks and events in the U.S. and Canada, 19 participating manufacturers, long-term partnerships with WeatherTech, Michelin, NBC Sports and others that have positioned IMSA for sustained success well into the future, world class teams and drivers, and a growing base of passionate sports car racing fans.

A thorough look at IMSA’s history – including many of those aforementioned twists and turns – to illustrate how we got from that fateful day 50 years ago to today, is available on

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